These are considered very old and sought after being Azure Blue and Fostoria. The most popular color collected today. I have 8 sets of cups saucers and salad plate.

In like new condition and 24 pieces in a set is harder to find. They were made mostly in the 20's to early 40's so can be considered antiques in my opinion.
2 sets availableThis price is for a set of,
4-7 1/2" salad plate
4-6" saucers
4-Cups 3 3/4" @ rim 1 3/4" @ foot 1 3/8" high.